Rachel Feltman: Happy Monday, listeners! For American scientists Science quickly, I am Rachel Feltman. I was off the office a little rest last week, so I didn’t have the opportunity to write and record our usual news summary. Instead, I thought it would be fun to immerse yourself in the American scientist Archives for the first time in a time. Let’s see that Sciam It was up to 100 years ago.
The April 1925 edition of American scientist I had more in common with our coverage in 2024 of what one would expect: 99 years separated for everyone they were gaga on eclipses. Although the total solar eclipse of January 1925 did not reach the same strip we had to enjoy last year, it treated people in Minnesota, Wisconsin, Michigan, Pennsylvania Island, Connectic, Connectic, Connectic, Connectic, Connectic, Connectic, Connectic, Connectic, Connectic, Connectic, Connectic, Connectic Connectic. According to SciamApril 1925 article on the subject, the weather was impeccable for eclipse visualization. The article also details some teams of the visual effects of honor that showed time to the eclipse. Apparently, some people on the path of totality saw patterns of dark bands and twisted on the ground door the last moments of sunlight. “In fact,” says the article, “there was hardly anything strange in the entire supernatural sequence than the appearance in the growing darkness of these tesions of the snakes twisting from the shadow.”
The 1925 writer explains usefully what scientists still think he is behind the thesis of illusory snakes. Apparently they were the shadows emitted by air stripes with different densities. As anyone who has been Gooths to experience an eclipse knows, the shadows emitted by the sun sharpen as the light source narrows in the reach. So, although we do not see the warmest and cooler air puddles that refract different amounts of light, a total imminent eclipse can make the effect notice. According to reports, there was a pristine snow on the ground at the door of the eclipse of 1925, which probably created a perfect background to see some solar shadow game.
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An interesting difference between the eclipse last year and 1925? The moon arrived late or, with greater precision, all humans were early -bu for about five seconds. The April 1925 edition of Sciam He explains that while the probable general public found delicious that totality predictions were so close to exactly, astronomers were “disappointed” by discrepancy.
What really good is how scientists realized the delay of five seconds. According to SciamThe observation stations along the path of totality were prepared to send a signal on the telegraph cable at the time the moon completely covered the sun. These signals were automatically recorded by “precise time measurement machines” in Bell Labs and Yale University so that scientists could later analyze the time of the event.
The same article predicts that an eclipse in 2025 “could be predicted not only within
A five -second error but within an error as small as it can be seen. “
Predict the exact arrival of the totality requires knowledge or where the sun and the moon will be in the sky at any given time. Now we have an excellent reading about where the moon is all the time, thanks to the mirrors that the Apollo missions remain there. And as we explain in our January episode about heliophysics, there are always many sun -centered scientists.
Eclippes, I can’t talk about vintage American scientist Without reminding you that the American scientist Psychic research was a very real and very serious effort by 1925. The official technical search for the magazine of the Proof of Genuine Ghosts was a hero from 1923 to 1924, but the rules especially the appropriate psychic commits would be seen. In April 1925 American scientist I spent a full page explaining why he is rejecting the claims of a woman known as “Margery”, who was equipped with the wife of a well -known surgeon in Boston.
According to the PBS report, Margery was the most serious contender in SciamThe search for a genuine spiritual environment, with the famous illusionist and skeptic Henry Houdini included in the committee that investigated it. Apparently, Houdini got tired of the length of how long he was taking American scientist Reject Margerry’s claims. Which published a brochure by dismissing its claims to its own cost.
Now, I could assume that American scientistThe readers were upset to see that the magazine took the media so seriously. But according to an article on Margery’s investigation published in SciamThe August 1924 edition, the “most persistent” criticism faced by the magazine for its psychic challenge was that it was too “misty” by discarding individual means.
Rigorous as always, American scientist He waited to make his official statement about Margery until the members of his committee attended almost 100 or his seans.
We will wrap our tour of the April 1925 number with a quick scan of the “New and Interesting Inventions” section. If our files have never looked before, this is the place to start a quick blow of strange historical delicious. It has new patents, the editors of Founde magazine, particularly innovative, and the result feels as a collection of “as seen on television” of night infomercial devices.
For example, in April 1925, the magazine presented an electric hall device that offered all kinds of accessories, from razor to teeth hygiene devices. I guess you could call it the original Dyson Airwrap. The magazine also shows an elaborate device Meean to eliminate the core of a grapefruit, which I must admit that it is disconcerting for several reasons.
Another prominent product is a small folding table for dogs, which the magazine suggested that it could “create good manners” of “Rais[ing] Your standard of living. “I see what you did there. Sciam The photographer did: “We should not call it great success.”
In a propaganda entitled “Founding The Highjacker”, the magazine stands out “an extremely intelligent device to frustrate the men of retention of automobile cars.” Was it a child or by locking or alarm system? NO —Poted on the floor or the car board.
That doesn’t mean everything SciamThe new favorite inventions are silly in retrospect. The April 1925 edition also shares the news that changed the game of the University of California that plums can now be artificial dehydrated more efficiently than three can be to the sun. And some of the outstanding products of the magazine are so practical that it makes me shudder to the people who lived before their invention: serrated kitchen scissors, rubber scratches to clean the kitchen of the kitchen and a standing trapener.
Perhaps the most exciting entrance is called “washing the car in a car laundry”, which describes a new bold installation where cars are transported on a conveyor belt and washed in impressive 14 minutes.
That’s all for this week’s vintage news summary. The usual news of the 21st century will return next Monday. If you are hungry for updates about current events, you can visit Scientificamerican.com. We will return on Wednesday to explore how AI is changing the way some people hurt.
Science quickly It is produced by me, Rachel Feltman, along with Fonda Mwangi, Kelso Harper, Naeem Amarsy and Jeff del Viscio. This episode was edited by Alex Sugiura. Shayna Posses and Aaron Shattuck verify our program. Our musical theme was composed of Dominic Smith. Subscribe to American scientist For more up -to -date and depth scientific news.
For Scientific American, This is Rachel Feltman. Have a great week!
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